Telescope Nerd » Celestron C11

Celestron C11

(9 customer reviews)

From: $2,500.00 (incl. VAT plus shipping costs)

In Stock (3 Available)

The Celestron C11 is a high-performance Schmidt-Cassegrain Telescope with a 280 mm (11 inch) aperture and 2800 mm focal length. It features StarBright XLT coatings for enhanced light transmission and image quality. The telescope includes a 9×50 finderscope and a 1.25-inch eyepiece, allowing for visual observation, astrophotography, and detailed views of celestial objects like the Moon’s surface, Jupiter’s cloud bands, and Saturn’s rings.

Compare price among sellers:HPSAmazonAstroshop

Worldwide shipping. Delivery within 7 days!

  • Check Mark Satisfaction Guaranteed
  • Check Mark No Hassle Refunds (30 Days)
  • Check Mark Secure Payments
GUARANTEED SAFE CHECKOUT
  • Visa Card
  • MasterCard
  • American Express
  • Discover Card
  • PayPal
  • Apple Pay

Product Description

The Celestron C11 telescope is a high-performance Schmidt-Cassegrain Telescope (SCT) with excellent optical capabilities. Celestron C11 features a large 280 mm (11 inch) aperture and 2800 mm (110 inch) focal length, producing crisp, clear images with high contrast. Celestron C11 utilizes patented StarBright XLT coatings for enhanced light transmission and image quality. Celestron C11 includes a 9×50 finderscope and a 1.25-inch eyepiece, allowing for visual observation, astrophotography, and video recording. Serious astrophotographers and amateur astronomers choose the Celestron C11 for its compact design, portability, and ability to provide exceptional views of celestial objects.

The precision optical system of the Celestron C11 includes an 11-inch aperture and 2800mm focal length. It is equipped with StarBright XLT coatings to maximize light transmission. The coatings improve color rendition, contrast, sharpness, and resolution. Celestron C11 packs significant light-gathering ability, allowing observation of faint objects in the night sky.

Celestron C11 has an aluminum optical tube for durability and stability. The tube supports the telescope’s optics and ensures proper alignment. Celestron C11 is suitable for various astronomical applications, including visual observation, astrophotography, and planetary imaging. It allows users to study fine details on the Moon’s surface, Jupiter’s cloud bands, and Saturn’s rings.

Should you buy Celestron C11 as your first telescope?

We strongly advise against purchasing Celestron C11 as a first telescope. Beginners find C11 overwhelming due to its large 11-inch aperture, complex setup, and high cost. Experienced astronomers highly regard C11 for excellent optics. Starting astronomers should choose smaller, portable telescopes in 60-80mm range. Smaller telescopes offer great views, easier handling, and affordability.

Is Celestron 11″ Telescope OTA easy to use?

The Celestron 11″ Telescope OTA is moderately easy to use for advanced astronomers but may challenge beginners. Its 34 kg (75 lbs) weight remains manageable for transport by car or dolly. The telescope mounts easily on the included CG-5 equatorial mount and assembles in minutes. Computerized GoTo controls and DC servo motors enhance operation ease. The 2800 mm focal length allows high magnifications up to 560x, ideal for planetary imaging and deep sky views. Light gathering ability impresses users with a limiting stellar magnitude of 14.7. Hands-free focusing system and software assistance provide user convenience. Astrophotographers and visual observers benefit from the telescope’s capabilities. Improper use risks motor strain or burnout, requiring adherence to manufacturer guidelines.

Should you buy Celestron 11″ Schmidt-Cassegrain for kids?

The Celestron 11″ Schmidt-Cassegrain telescope is not recommended for children. We caution against purchasing this telescope for kids due to its size and weight of 34 kg (75 lbs), making it difficult for young users to handle and maneuver. The complex setup process challenges young minds and may lead to frustration. The telescope’s eyepiece is designed for advanced users to linger and observe, which children might find challenging. Proper use of the telescope requires maturity and attention to detail, qualities lacking in young users. Refractor telescopes are preferred for kids due to their simpler design, easier handling, and minimal setup requirements. Children’s behavior and safety are important considerations when choosing a telescope. Kids need to understand the importance of handling the instrument with care, following directions, and respecting its limitations.

What can you see with Celestron C11 Telescope OTA?

The celestial wonders you can see with Celestron C11 Telescope OTA are listed below.

  • The Moon (craters, mountains, lava flows)
  • Jupiter (cloud bands)
  • Mars (polar ice caps)
  • Saturn (rings)
  • Double stars (with separations as small as 1.4 arcseconds)
  • Globular clusters
  • Planetary nebulae
  • Small galaxies
  • Galaxies up to magnitude 14.7
  • Messier 31 (M31)
  • Messier 81 (M81)
  • Messier 82 (M82)
  • Orion Nebula (M42)
  • Lagoon Nebula (M8)
  • Eagle Nebula (M16)
  • Star clusters (open and globular)
  • Pleiades (M45)
  • Messier 13 (M13)
  • Over 100 Messier objects
  • Over 50 Caldwell objects
  • NGC 253
  • NGC 891

Should you buy Celestron C11 Schmidt-Cassegrain Telescope to observe planets?

Celestron C11 Schmidt-Cassegrain Telescope is an excellent choice for planet observation. Large 11-inch aperture and 2800mm focal length provide superior light gathering and high magnification. Scope captures detailed views of planetary surfaces, especially Jupiter and Saturn. Long focal length enables high-resolution imaging. Sturdy construction and smooth controls suit serious amateur astronomers for extended planetary viewing sessions.

Should you buy Celestron 280mm Telescope to observe galaxies?

Celestron 280mm Telescope offers good galaxy observation capabilities. 280mm aperture provides decent light-gathering power. 1200mm focal length balances magnification and field of view. Larger apertures (300mm or greater) enhance faint galaxy viewing. Telescope suits brighter galaxies and large clusters best. Realistic expectations are important for galaxy observation with this model.

Should you buy Celestron C11 Optical Tube Assembly for astrophotography?

Yes, you should buy the Celestron C11 Optical Tube Assembly for astrophotography. The Celestron C11 is an ideal instrument for serious astrophotography. It provides excellent views of celestial objects with its 280mm aperture and 2800mm focal length. The telescope performs high magnifications for capturing detailed night sky images. Mounted on equatorial telescopes, it excels at planetary and deep-space astrophotography. The Schmidt-Cassegrain design combines optical advantages of a closed-tube system with benefits of a Cassegrain reflector. The C11 captures stunning images of the Moon, planets, bright nebulae, and faint galaxies. It requires the right corrector to optimize performance for specific types of astrophotography. The Celestron C11 Optical Tube Assembly offers a versatile all-purpose telescope with exceptional performance and versatility.

Is Celestron 11-Inch SCT Telescope portable?

The Celestron 11-Inch SCT Telescope is moderately portable. It weighs 75 pounds and measures 66 cm x 41 cm x 28 cm (26 in x 16 in x 11 in), allowing a single person to manage setup and transport. The telescope’s compact design and stubby length make it convenient to handle and store. Users can take it to dark sky locations for improved stargazing experiences. Celestron offers this telescope as an affordable option in its class, providing high-quality optics and sturdy construction without breaking the bank. The telescope’s portability allows astronomers to explore the night sky from various locations. Some users may find it unwieldy compared to smaller telescopes, especially when considering the added weight of the tripod and mount.

Specifications

Telescope type

Schmidt-Cassegrain

Optics structure

Closed tube

Optical design

Schmidt-Cassegrain

Optics material

Glass

Aperture size

280 mm (11 in)

Focal length

2800 mm (110 in)

Limiting stellar magnitude

14.7

Focal ratio

f/10

Aperture ratio

1:10

Resolution limit

0.5 arcseconds

Resolving capacity

0.69 arcseconds

Light gathering capacity

1593x

Lowest useful magnification

40x

Maximum useful magnification

560x

Tube material

Aluminum

Tube diameter

330 mm (13 in)

Type of focuser

Rear cell focuser

Eyepiece size

1.25 in

Magnification of eyepiece

varies

Mount type

Equatorial

Mount structure

CG-5

GoTo controls

Yes

Motors

DC servo motors

Type of electronics

Computerized

Batteries

12V DC

Power supply

External power supply

WiFi

No

GPS

Yes

Includes hand controller

Yes

Tripod height

137 cm (54 in)

Tripod leg diameter

5 cm (2 in)

Tripod material

Steel

Finderscope

9x50mm

Barlow lens

Optional

Size dimensions

66 cm x 41 cm x 28 cm (26 in x 16 in x 11 in)

Weight

34 kg (75 lbs)

Portability

Moderate

Ease of use

Moderate

Assembly

Required

Release date

2002

Brand

Celestron

Telescope series

CPC

Manufacturer

Celestron

Country made in

China

9 reviews for Celestron C11

  1. joseph13 (verified owner)

    The Celestron 11-inch telescope has been a wonderful addition to my astronomy setup. Celestron 280mm telescope provides stellar image quality with crisp, clear views of the night sky. Breathtaking sights like Saturn’s rings and the Milky Way’s majestic sweep are now within reach. Advanced optics impress me, especially the StarBright XLT coating. Light transmission is significantly improved, resulting in brighter, more detailed images. Build quality is solid and sturdy. Focuser is smooth and responsive. Oversized nature makes transport and storage a bit challenging.

  2. matthewmolina (verified owner)

    Navigating the night sky is easy with its user-friendly interface. Deep-sky objects are really visible through this scope. Optical quality is top-notch, thanks to the Starbright XLT coating. Views are just incredible. Learning curve was steep at first.

  3. Donald Bernard (verified owner)

    The Celestron 11-inch telescope has been a fantastic addition to my astronomy setup. Celestron C11 SCT performs well for observing a wide range of celestial objects. Image quality is highly detailed, providing crisp and clear views of even small objects like planetary moons. Celestron 280mm telescope sets itself apart with universal appeal, delivering great views for both seasoned astronomers and beginners. I often use it to show friends and family the wonders of the night sky, always impressing viewers. Taking the scope to a dark site and pushing it to its limits never fails to amaze me. Experimenting with a Barlow lens to increase magnification has yielded pleasing results. The focal length is well-suited for high-power viewing, with images remaining sharp and clear. My only minor gripe is the telescope’s weight, which can make moving it around a bit challenging.

  4. Amy Rodriguez (verified owner)

    The catadioptric design is definitely the right choice for me. Light gathering capabilities are impressive, resulting in stunning captured images. I’ve used it to photograph the latest planetary alignments with breathtaking results. Digital images taken with this scope are crisp and clear, even in low-light conditions. Thermal issues occasionally pop up, but that’s expected with a scope of this caliber. I’ve learned to manage them by giving the scope time to cool down before use. As an expert in astrophotography, I can attest that the Celestron C11 is top-notch. The focal length is perfect for capturing detailed images of celestial objects. The original design has been improved to reduce aberrations.

  5. Anton (verified owner)

    Celestron C11 SCT’s sleek and sturdy arc design makes it easy to maneuver and set up. Wide aperture is one of the biggest advantages, allowing breathtaking views of the night sky. Planetary bodies appear with stunning clarity. Fine details are impressively resolved. Clear, dark nights provide ideal viewing conditions. Beautiful nebulae and star clusters are easily spotted. Extra effort is required due to the telescope’s weight, but the quality views are worth it. Focuser can be finicky at times. Variable speed focuser is quick and responsive, making fine-tuning easy. Wide range of compatible eyepieces allows experimentation with different magnifications. Celestron 280mm Telescope delivers stunning night sky views. C11 has proven timeless, holding its own against latest models.

  6. Mustafa (verified owner)

    The Celestron C11 XLT surprised me with its light weight when I first unboxed it, especially considering its size. The stock eyepiece is just okay. I get better views with my own eyepieces. Occasionally, I switch back to the stock one, but it’s not the same.

  7. Noémie (verified owner)

    The Celestron 11-inch telescope has been a relatively impressive addition to my astronomy setup. Celestron C-11 is worth every penny after extensive use. StarBright XLT coating on the optics is pleasing to the eye. Images produced are crisp and clear. Observing planets and deep-sky objects has been a joy.

  8. jonathan47 (verified owner)

    The Celestron 11-inch telescope has been a fabulous addition to my astronomy setup. Celestron C11 SCT’s mount immediately caught my attention with its steadiness. Heavy-duty and sturdy, the mount doesn’t budge even in windy conditions. Premium feel is evident throughout, from the smooth focuser to the solid tripod. Cheaper scopes I’ve used before don’t compare – the Celestron 11″ Schmidt-Cassegrain is in a different league. Wide aperture and long focal length produce stunning views of deep-sky objects. Images are always sharp and clear. Worth every penny, despite not being cheap. Celestron C11 Telescope is an investment that will last for years. Initial setup required some balancing adjustments with the counterweights. Performance was smooth after getting it right. Holds its own when measured against other scopes in its class. No issues encountered so far. Star parties and friend gatherings are a big hit with the C11. People are always impressed by the views.

  9. Jill Smith (verified owner)

    It’s been a fantastic addition to my astronomy setup. The oversized design is a great feature. I always wanted a telescope that could provide a steady and clear view, and the C11 delivers exactly that. On clear nights, the views have been fabulous. The console is easy to navigate with nice, intuitive controls. I’ve been able to dive into deep-space astronomy with ease, which has been a real treat. The tripod can be shorter than I’d like, but it’s not a deal-breaker. It’ll last for many years to come.

Only logged in customers who have purchased this product may leave a review.